Machine for affixing slide fastener elements to tapes



March 2- M. 'KIESSLING MACHINE FOR AFFIXING SLIDE FASTENER ELEMENTS T0TAPES FiledJu ly a, 19:59- 2 Sheets-Shet 1 INVE NTOR Max Iflessling.

AITORNEY Patented Mar. 10, 1942 UNITED "STATES PATENT OFFICE 'MACHINEFOB AFFIXING SLIDE FASTENER ELEMENTS TO TAPES Mag Klessling, Waterbury,Conn. Application July a, 1939, Serial No. 282,747

3 Claims.

This invention relates to slide fasteners, and

more particularly to a machine for attaching a' series of spaced rows ofseparable slide fastener elements upon a fabric tape or stringer, and isan improvement of the invention disclosed in Patent No. 1,971,158 issuedAugust 21, 1934, to Max Kiessling, Adolph J. Krieger and John Draher forseparable fastener attachment machine.

In previous machines of the type referred to above. it was found thatwhen a relatively long row of elements was afilxed to a tape, the sizeof the machinewas increased to a prohibitive-degree, requiring the useof excessive floor space, and thus limiting the number of machines whichcould be installed in a given area. By means of the present invention,the above and other disadvantages have been overcome, and provision hasbeen made of a machine of compact size capable of producing slidefastener tapes having rows of fastener elements of any desired length.

One object of this invention is to provide a machine of the above natureprovided with means to adjust the length of the rows of fastenerelements. g

A further object of this invention is to provide a machine of the abovenature which will be relatively inexpensive to manufacture, simple inconstruction, and very eflicient and durable in use.-

With these and other objects in view, which will appear asthedescription proceeds, there has been illustrated in the accompanyingdrawings one form in which. the invention may be conveniently embodiedin practice.

In the drawings:

Fig. 1 is a broken plan view of a machine for amxing. fastener elementsto a tape embodying the principles and features of this invention.

Fi 2 is a broken side view of the same.

Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. 2,looking in the direction of the arrows. 1

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 3. g

Fig. 5 is a sectional view of the vertically adjustable pulley taken onthe line 5-5 of Fig. 3.

Referring now to the drawings wherein like reference numerals designatelike parts throughout the several views, the numeral l denotes theframe, or bed, of a fastener afiixing machine such as is shown anddescribed in the patent above referred to. A pair of reciprocatingfastener element clinching dies H and I2 are oppositely arranged toslide in the bed It and are adapted to successively clamp the fastenerelements i3 to an elongated fabric tape H (see Fig. 3). The dies II andI2 are adapted to be moved toward each other into operative position tosqueeze an element l3 between them by a pair of power drivenreciprocating bars l5 which actuate a pair of toggle linkages l6, whichin turn serve to reciprocate the dies II and I2 as described above.

. The elements l3 are fedinto afllxing position from a verticalupstanding magazine I! by means of a reciprocable feed slide I8. Thetape I4 is fed from any suitable source of supply about threetriangularly arranged guiding rollers l9, and is caused to passvertically upward between the dies H and I2, and thence around a groovedfeed roller 20. From the feed roller 20, the tape H is fed along theentire length of a horizontal grooved tape-guiding and supporting bar 2|at the end of which the tape I4 is gripped by a pair of tape pullingrollers 22 and 23, the roller 23 being power-driven and the roller 22being biased toward the driven roller 23 by a coiled spring 24. As fullydescribed in the above mentioned patent, the reciprocation of theelement feeding slide I8 is controlled electrically by means not shownherein, and which is in turn controlled by an element-operatedelectrical switch device 25. The switch device 25 is slidably mounted onthe tape guiding bar 2| and serves to start and stop the feeding of theelements by the slide It in accordance with the desired length of therow of elements to be afilxed to the tape ll.-

In order to apply to said tape a row of fastener elements longer thanthe normal machine capacity, which is represented by the. distancebetween the roller 2| and the control switch de- 4 vice 25, when it isinits extreme position at the left in Fig. 1 adjacent the grippingrollers 22 and 23, it would be necessary in. the previous type ofmachine to lengthen the bar 2| whichwould require a prohibitive amountof floor space.

In the present invention, however, instead of lengthening the tapesupporting bar 2|, one side of said bar is split into two or moresections, and provision is made of one or more vertically dis- DO 'edslotted frames 26 which are secured at their upper ends to a like numberof horizontal top brackets 21, as by screws 28, the brackets 21 in turnbeing secured to the other side edge of the tape guiding bar 2| byscrews 29. Provision is also madein each bracket 21 of a pair ofhorizontal rollers 30 and II spaced apart horizontally with respect tothe bar 2|, and being rotatably mounted on horizontal spindles 32extending from the bracket 21, said rollers 36 and The lower end of theframe 26 is preferably bent laterally to form a foot 34a which isadapted to be bolted to the floor beneath the bar 2| by a bolt 36.

In order to adjustably guide the loop of fastener tape depending beloweach pair of rollers 33 and 3|, provision is made of a groovedloop-guiding pulley 36 which is rotatably mounted on a verticallyadjustable horizontal spindle 31, which is flattened at its sides 36 and39 toslidably fit in the slot '46 of the frame 26. The spindle 31 passesfreely through the slotted frame 26 and also through a clamp plate 6|on'the front of said frame, and a knurled hand-operated lock ing nut 42is screwed upon threads 43 provided on the outer end of said spindle 31.Each clamp plate I extends across its corresponding slotted frame 26 andhas its side edges 44 and 45 bent over thesides of this frame 26,whereby said plate 6| is vertically slidable on said frame withoutturning. By means of this construction, it will be seen that byloosening the locking nut 62,

the lo p-guiding roller 36 may be moved toany desired adjustablevertical position on the slotted frame 26 according to the length of therow of elements .to be attached to the tape ll. The tape will.then beled along the bar 2|, down through the slot 33, over the roller 30,downwardly about the loop-guiding pulley 36, upwardly over the roller3|, through the cross-slot 34, and then again along the bar 2| to thegripping rollers 22 and 23. When exceptionally long tapes II arerequired, a plurality of such frames 26 with their associated rollers36, 3|, and pulley 36 may be provided-two of such frames bein indicatedin Figs. 1 and 2.

v Operation In operation, when it is desired to attach a row of fastenerelements I3 to a predetermined length of tape H, the electrical switchcontrol device 25 will first be moved to the proper position on the bar2| and clamped thereto by a thumb screw 46. The tape M will pass alongthe upguiding roller 36 will then be adjusted vertically in the slottedframe 26 in accordance with the length of tape required. Should therequired length of tape be longer than can be taken care of by the useof one frame 26 and roller 36, it

embodied, it is to be understood that this form is shown for the purposeof illustration only, and that the invention is not to be limited to thespecific disclosure, but may be modified and embodied in various otherforms without departing from its spirit. In short, the inventionincludes all the modifications and embodiments coming within the scopeof the following claims.

Having thus fully described the invention, what is claimed as new andfor which it is desired to secure Letters Patent, is:

1. In a machine for affixing rows of fastener elements upon a tape, aguide bar over which said tape travels, means to feed said tape to oneend of said bar, means to take up said tape at the other end of saidbar, element attaching means adjacent said feed means, element operatedmeans adjacentsaid take up means to control the attachment of saidfastener elements to said tape, and means intermediate said feed meansand said control means to continuously pass said tape away from said barin a loop and then re-' turn it back to said bar, whereby a longer rowof elements may be attached to said tape between said feed means andsaid control means than would otherwise be possible.

2. In a machine for amxing fastener elements to a tape, a guide bar forsaid tape, means to feed tape to one end of said bar, element attachinmeans adjacent said feed means, means to withdraw said tape from theother end of said bar. means located adjacent said withdrawing meansresponsive to the elements on said tapeto control the attachment ofelements to said tape, said guide bar having a pair of spaced-apartcross-slots, a pair of rollers below and in alinement with each of saidcross-slots respectively, a slotted frame extending downwardly from saidbar between said rollers, a spindle slidable up and down in the slot ofsaid frame, a pulley rotatably mounted on said spindle, said pulleybewill be understood that another frame 26 may be employed as shown inFigs. 1 and 2.

While there has been disclosed in this speciflcation one form in whichthe invention may be ing adapted to receive a loop of said tapethreadeddownwardly through said cross-slots, and means to clamp saidspindle to said frame in any desired vertical adjusted position thereonwhereby the length of said tape may be varied.

3. In a machine for aflixing fastener elements to a tape, a 'guide barfor said tape, means to feed said tape to one end of said guide bar,means to take up said tape from the other end of said bar, elementattaching means adjacent said feed means, element-operated meansadjacent said take up means to control the attachment of elements tosaid tape, a pair of upper rollers mount- -ed in said guide bar, aslotted frame extending downwardly from said bar between said rollers, aspindle slidable up and down in the slot of said frame, a lower pulleyrotatably mounted on said spindle,' said pulley being adapted to receivea loop of said tape threaded downwardly through said cross-slots, meansto clamp said spindle to said frame in any desired vertical adjustedposition thereon whereby the length of said tape may be varied, andmeans on said frame for support- 55 ing it upon the floor beneath it.

MAX KIESSLING.

